1991 Ford Probe vs. 1985 Ford Sierra
To start off, 1991 Ford Probe is newer by 6 year(s). Which means there will be less support and parts availability for 1985 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1985 Ford Sierra would be higher. At 2,790 cc (6 cylinders), 1985 Ford Sierra is equipped with a bigger engine. In terms of performance, 1985 Ford Sierra (148 HP @ 5700 RPM) has 40 more horse power than 1991 Ford Probe. (108 HP @ 4700 RPM) In normal driving conditions, 1985 Ford Sierra should accelerate faster than 1991 Ford Probe. With that said, vehicle weight also plays an important factor in acceleration. 1991 Ford Probe weights approximately 45 kg more than 1985 Ford Sierra.
Let's talk about torque, 1985 Ford Sierra (220 Nm @ 3800 RPM) has 41 more torque (in Nm) than 1991 Ford Probe. (179 Nm @ 3000 RPM). This means 1985 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Probe.
Compare all specifications:
| 1991 Ford Probe | 1985 Ford Sierra | |
| Make | Ford | Ford |
| Model | Probe | Sierra |
| Year Released | 1991 | 1985 |
| Engine Position | Front | Front |
| Engine Size | 2184 cc | 2790 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 108 HP | 148 HP |
| Engine RPM | 4700 RPM | 5700 RPM |
| Torque | 179 Nm | 220 Nm |
| Torque RPM | 3000 RPM | 3800 RPM |
| Engine Bore Size | 86 mm | 93 mm |
| Engine Stroke Size | 94 mm | 68.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1250 kg | 1205 kg |
| Vehicle Length | 4510 mm | 4400 mm |
| Vehicle Width | 1730 mm | 1680 mm |
| Vehicle Height | 1330 mm | 1370 mm |
| Wheelbase Size | 2530 mm | 2620 mm |
